The LED LENSER® P5 is small, lightweight, an energy-saving marvel and at the same time a giant of brightness. It is operated with only one Mignon (AA) battery. Each nanosecond, the built-in DC/DC converter pumps energy through the high-performance LED (Cree, 3 watt). The result is quite impressive and exceeds the light output of (conventional) electric torches that weigh more than ten times as much.** The focusing system (Advanced Focus System) is as convincing as the one-hand operation mechanism (Speed Focus).